Card clothing



Jan. 21, 1964 E. v. CAILLE 3,118,185

CARD CLOTHING Filed Dec. 7, 1961 INVENTOR EUGENE V. CAILLE ATTORNEYUnited States Patent 3,118,185 CARD CLOTHENG Eugene Victor Caille, 3Vernon St, South Barre, Mass. Filed Dec. 7, 1961, Ser. No. 157,653 8Claims. (Cl. 19-114) This invention relates to a completely novel typeof card clothing. In general there are two main types of continuous cardclothing, fillet and metallic. Each one of these types of card clothinghas well known advantages and disadvantages as well as certain definiterestrict1ons as to the point population per square inch, and it is thegeneral object of the present invention to provide a card clothing whichcombines the good features of both fillet and metallic (garnet) while atthe same time avoidmg all of the disadvantages of both, and also at thesame time providing for a greatly increased point population per squareinch. Whereas the densest fillet point population per square inch is inthe nature of 860 points per square inch and that of the metallic wireis a maximum of 580 points per square inch, in the present instance itis possible to provide up to 2,000 points per square inch, and of courseas is generally recognized the greater number of points, the better thequality of the stock and the greater the production.

The present invention includes the provision of card clothing in thegeneral nature of a metallic base wire somewhat similar to metallicclothing but instead or" integral teeth the new clothing has separateinserted wire points which are somewhat similar to the points in thefillet type of card clothing but are not staples, thus providing for alittle give or resilience in the teeth which is impossible with themetallic wire punched teeth, and providing for the maintenance of thesharp points in the new clothing which is impossible in the metallicwire. The new wire is resilient with self-stripping properties notpossible in the metallic wire and of course as is well known the punchededges of the metallic points tend to break or cut the fibers which doesnot occur of course with the round wire teeth.

Furthermore the new wire teeth can be provided with a forward rake whichis ordinarily desirable and this rake can be varied to any degreedesired. The sides of the base wire on which the separate teeth aremounted are more or less naturally self-locking, contacting each othertightly around the cylinder or roll and being held in position therebyalthough it is possible with side embossing as a straight-lined knurl orthe like to bind and lock the courses of the base wire together.

There are a great many other advantages in the present invention amongwhich is the fact that if there are dents or flat spots on the cylinderor roll, it is of course impossible to grind off the points of garnetwire teeth in order to accommodate the same, but it is possible to do itwith the new wire so as to provide a perfectly cylindrical pointsurface, even though there are dents or flats on the roll, and of coursewith dents or flats on the roll or cylinder, the fillet clothing doesnot have a firm support.

The invention further relates to arrangements and combinations of partswhich will be hereinafter described and more particularly set forth inthe appended claims.

Reference is to be had to the accompanying drawings, in which FIG. 1 isa View in side elevation illustrating the new card clothing;

FIG. 2 is a section on line 22 of FIG. 1;

FIG. 3 is a plan View; and

FIG. 4 illustrates the card clothing strip prior to formation.

The basis of the present invention essentially is the fact that the basesupporting wire is made of metal like a garnet wire but instead ofhaving punched or cut teeth integral therewith as in the garnet wire,the teeth in the present case are made of round or other shaped wire andare formed separately and of different material should this be desiredand are secured to the base wire. By this means it will be seen that itis possible to place the wires in side-by-side contacting relation ifthis should be desired as completely opposed to any possiblility of thisin either fillet or garnet wire points.

A layer or layers of some flexible base material it as paper, tape,plastic, etc. is used to mount the individual wire points 12. This isthen applied to an elongated strip of metal which is somewhat tlexibleand resilient and this strip is longitudinally bent over upon itselfapproximately upon lines which are indicated at 14 and 16 (FIG. 4), thefolds of course including the wire points 12 as well as the layers in).

This results in a formation similar to that shown in PEG. 2. The metalsheet is indicated generally by the reference numeral at 18 and thefolds are appropriately labeled at 14 and 16 to coincide in general withthe equivalent lines in FIG. 4. It will be noted that the fold at 16 isrelatively broad. The folding over results in an interior end layer orlamination 2t, of the metal sheet 13, connected as by the bend at 14with an outer sheet or layer 22, and an opposite outer layer 24connected to that at 22 by the relatively broad told at 16. Or" coursethe wires 12 are bent in the same way providing internal end portions26, intermediate bent portions 23 and generally straight portions at 39which extent outwardly of the metallic sheet fold construction formingthe points 32.

The points 32 may be provided with a forward rake if desired, or theymay be straight.

It will be seen that this construction provides for very closely spacedwire points 32 or for any spacing needed. The points may be round oroval or have any other section which may be desired, and they are ofcourse securely and permanently locked in position by reason of theinterwound construction as exemplified particularly by the terminalportion 26 of the wires 12 in cooperation with the internal centralfolded-in portion as of the sheet metal material. The degree of pressureapplied to the opposite sides of the base metal 18 determines thepossible indentation of the metal as shown in FIG. 3, and it will beappreciated that the wire teeth are held ex remely firmly and althoughthey themselves are resilient and have qualities of self-cleaning asexplained above, nevertheless they will not move to any appreciableextent within the base wire member 18. The gummed paper ai fords acertain degree of freedom of action which is in some cases desirable.

It will be seen too that the exterior side walls of the base metal '18can be embossed as for instance by vertical or inclined grooves orridges or the like, and when this wire is wound on a roll or cylinder,the same will therefore be securely locked in position against any kindof disturbance. However, such embossing is not always necessary andvarious other locking means might be utilized in order to hold thecourses or winds of the base wire member together.

it is believed that it will be seen that all the objects of theinvention have been carried out and that the present card clothing hasall the advantages of both fillet and garnet wire without any of thedisadvantages of either one. The wire members can be placed in actualcontacting relation if desired, and by this means many more points persquare inch can be provided, whereas in fillet card clothing it isimpossible to put the wires so close together as the punched holes inthe foundation would cause the foundation to be so weak as to beuseless; and of course the conventional punched teeth in garnet wirecannot be punched in any such frequency. The Wire is very easily handledand as will be clear to those skilled in the art it can be groundWhenever desired While still in position on the cylinder or roll, thisbeing impossible with the ordinary garnet Wire.

Havin thus described my invention and the advantages thereof, 1 do notwish to be limited to the details herein disclosed, otherwise than asset forth in the claims, but what I claim is:

1. Card clothing comprising an elongated base in strip form, a series ofWire tooth elements mounted on the strip and extending therefromgenerally transversely thereto, and interengaging means on the base andeach tooth holding the teeth to the base, the interengaging meansincluding complementary hook-like portions on the base and on eachtooth.

2. Card clothing comprising an elongated strip forming a generally flatbase and a series of Wire elements mounted thereon, said Wire elementsextending laterally from the base at a side edge thereof and presentinga series of points extending therefrom at said side edge, and meanssecuring each tooth to the base.

3. Card clothing comprising an elongated strip of metal forming a baseand a series of wire elements mounted thereon and secured thereto, saidwire elements extending from the base Wire and presenting a serie ofpoints extending therefrom at an edge thereof, each Wire element havinga reversed end portion held in the base, and means in the basereceiving, holding, and concealing the reversed ends of the Wireelements.

4. Card clothing comprising a base strip and a series of separate Wideteeth mounted thereon, said teeth having 4 reversely extending terminalportions embraced by reversely arranged terminal edge portions of thebase strip.

5. Metallic card clothing comprising a relatively heavy elongated Wirebase member longitudinally folded on itself and a series of separateclosely spaced relatively light Wire teeth mounted thereon and extendinglaterally therefrom each tooth having a portion engaged in the fold andheld therein and thereby.

6. Metallic card clothing comprising a relatively heavy elongated wirebase member and a series of separate closely spaced relatively lightWire teeth mounted thereon and extending laterally therefrom, said teethhaving hooklike terminal portions embedded in the base member.

7. Card clothin comprising a relatively heavy elongated base member anda series of separate closely spaced relatively light wire teeth mountedthereon and extending laterally therefrom, said base member beinglongitudinally folded on itself to form connected spaced layers forminga hook-like passage, and the teeth including terminal portions in thepassage and interengaged with the layers of the base member.

8. The card clothing of claim 7 wherein the terminal portions of theteeth included reversely extending portions conforming to the hook-likepassage.

References Jited in the file of this patent UNITED STATES PATENTS1,893,326 Fournier et a1 Ian. 3, 1933 2,851,736 Hollingsworth Sept. 16,1958 2339,18 Tempest et al June 7, 1960

1. CARD CLOTHING COMPRISING AN ELONGATED BASE IN STRIP FORM, A SERIES OFWIRE TOOTH ELEMENTS MOUNTED ON THE STRIP AND EXTENDING THEREFROMGENERALLY TRANSVERSELY THERETO, AND INTERENGAGING MEANS ON THE BASE ANDEACH TOOTH HOLDING THE TEETH TO THE BASE, THE INTERENGAGING MEANSINCLUDING COMPLEMENTARY HOOK-LIKE PORTIONS ON THE BASE AND ON EACHTOOTH.